The best answer for this question would be:
C. were helping
The answer is C, because the one noun is a singular while
the other one is paired with a plural, so the verb should be in plural form as
much as possible.
Density. I believe this is the answer you are looking for
Answer:
Synergy is often one of the goals of a merger or acquisition. The two firms combined may be able to achieve higher profitability than either firm could achieve on its own.
